<template>
  <div class="box">
    <h1>好好学习，天天向上</h1>
  </div>
</template>

<style scoped>
.box{
  width: 100%;
  overflow: hidden;
  text-align: center;
}
.box h1{
  vertical-align: middle;
  line-height: 200px;
}
</style>